Salesforce CRT-450 Online Practice Questions and Exam Preparation

Salesforce CRT-450 Online Questions & Answers

• Question 591:

  A developer considers the following snippet of code: Based on this code, what is the value of x?

  

  A. 2
  B. 1
  C. 3
  D. 4
  D. 4

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  Explanation/Reference:

• Question 592:

  Which type of code represents the view in the MVC architecture on the Force.com platform?

  A. An apex method in an extension that returns a list of cases
  B. An apex method that executes SOQL to retrieve a list of cases
  C. A visualforce page that dysplays information about case records by iterating over a list of cases
  D. Validation rules for a page layout that includes a related list of cases
  C. A visualforce page that dysplays information about case records by iterating over a list of cases

• Question 593:

  A developer creates a new Visualforce page and Apex extension, and writes test classes that exercise 95% coverage of the new Apex extension.Change set deployment to production fails with the test coverage warning: "Average test coverage across all Apex classes and triggers is 74%, at least 75% test coverage is required."

  What can the developer do to successfully deploy the new Visualforce page and extension?

  A. Create test classes to exercise the Visualforce page markup.
  B. Select "Disable Parallel Apex Testing" to run all the tests.
  C. Add test methods to existing test classes from previous deployments.
  D. Select "Fast Deployment'' to bypass running all the tests.
  C. Add test methods to existing test classes from previous deployments.

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  Explanation/Reference:

• Question 594:

  Which code displays the contents of a Visualforce page as a PDF?

  B

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  Explanation/Reference:

  https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_output_pdf_renderas.htm

  You can generate a downloadable, printable PDF file of a Visualforce page using the PDF rendering service. Convert a page to PDF by changing the tag.

• Question 595:

  A developer must modify the following code snippet to prevent the number of SOQL queries issued from exceeding the platform governor limit.

  

  The above method might be called during a trigger execution via a Lightning component. Which technique should be implemented to avoid reaching the governor limit?

  A. Use the System.Limits.getQueries() method to ensure the number of queries is less than 100.
  B. Use the System.Limits.getlimitQueries() method to ensure the number of queries is less than 100.
  C. Refector the code above to perform the SOQL query only if the Set of opportunityIds contains less 100 Ids.
  D. Refactor the code above to perform only one SOQL query, filtering by the Set of opportunityIds.
  D. Refactor the code above to perform only one SOQL query, filtering by the Set of opportunityIds.

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  Explanation/Reference:

• Question 596:

  Which aspect of Apex programming is limited due to multitenancy?

  A. The number of active Apex classes
  B. The number of methods in an Apex Class
  C. The number of records processed in a loop
  D. The number of records returned from database queries
  D. The number of records returned from database queries

• Question 597:

  What are two ways that a controller and extension can be specified on a Visualforce page? Choose 2 answers

  A. a@pex:page=Account extends="myControllerExtension"
  B. Qo apex:page standardController="Account" extensions="myControllerExtension"
  C. apex:page controllers="Account, myControllerExtension"
  D. apex:page controller="Account" extensions="myControllerExtension""
  B. Qo apex:page standardController="Account" extensions="myControllerExtension"
  D. apex:page controller="Account" extensions="myControllerExtension""

• Question 598:

  What must the Controller for a Visualforce page utilize to override the Standard Opportunity view button?

  A. The StandardSetController to support related lists for pagination.
  B. The Opportunity StandardController for pre -built functionality.
  C. A callback constructor to reference the StandardController.
  D. A constructor that initializes a private Opportunity variable.
  B. The Opportunity StandardController for pre -built functionality.

• Question 599:

  Which resource can be included in a Lightning Component bundle? Choose 2 answers

  A. Apex class
  B. Adobe Flash
  C. JavaScript
  D. Documentation
  C. JavaScript
  D. Documentation

• Question 600:

  The Sales Management team hires a new intern. The intern is not allowed to view Opportunities, but needs to see the Most Recent Closed Date of all child Opportunities when viewing an Account record. What would a developer do to meet this requirement?

  A. Create a trigger on the Account object that queries the Close Date of the most recent Opportunities.
  B. Create a Workflow rule on the Opportunity object that updates a field on the parent Account.
  C. Create a formula field on the Account object that performs a MAX on the Opportunity Close Date field.
  D. Create a roll-up summary field on the Account object that performs a MAX on the Opportunity Close Date field.
  D. Create a roll-up summary field on the Account object that performs a MAX on the Opportunity Close Date field.

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  Explanation/Reference: